Flange joint sealing gasket



FIG. 1 is a perspective view of the left, front, and bottom of a flange joint sealing gasket, showing our new design.

FIG. 2 is a front view thereof, the rear view being identical to the front view.

FIG. 3 is a bottom view thereof, the top view being a mirror image of the bottom view; and,

FIG. 4 is a left side view thereof, the right side view being a mirror image of the left side view.

Portions or features of the article not shown in the drawings form no part of the claimed design. 

The ornamental design for a flange joint sealing gasket, as shown and described. 